Typewriting machine



Nov. 10, 1925 156L191 J. A. B. SMITH TYPEWRI TING MACHINE Filed Sept. 1 1923 hvmfar:

- reels or Patented Nov. 10, 1925.

UNITED STATES PA NT OFFICE.

JESSE A. B. SMITH, OF STAMFORD, CONNECTICUT, ASSIGNOB TO UNDER-WOOD. TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION. OF DELAWARE.

TYPEWRITING MACHINE.

Application filed September 14, 1923. Serial No. 882,640.

To all whom it may 0071mm. I

Be it known that I, JESSE A. B. SMITH, a citizen of the United States. residing in Stamford. in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Typewritting blachines, of which the following is a specification.

This invention relates to typewriting machines, and is herein disclosed as applied to an- Underwood continuous billing machine, one form of which is shown in the patent to lvernery & Smith, No. 1,132,055, dated March 16, 19l5. In such machines, it is comrnon to use fan folderl webs which are threaded through a carbon-paper carriage, the latter adapted to be reciprocated upon an extension of the typewriter carriage. The fan-folded webs frequently come folded crosswise, so that they can be handled in the form of bales instead of being wound upon rollers. The transverse foldsof such webs sometimes interfere with the smooth operation of the machine,especially where the machine is provided with slitters which slit the fan-folded web as it appreaches or leaves the carbon-paper carriage.

An object of the present invention is the provision of a device, through which the web may pass on its way to the platen, and by means of which, without the occurrence of undesirable friction or drag on the web, the cross-folds in the latter may be ironed-out or erased before interleavement of the same with the carbon-sheets, and before the cross folds or creases reach the. slitters, if slitters are present. I

A cross-folded bale or stack of web is naturally a zigzag fold; where'for, as the web tends to straighten out in the machine, the

protubcra-nccs thereon, due to the cross-foldlng, are alternately first on one face of the web and then on the other face thereof. It

is a feature of the invention that these pro the web at such points, these curved surfaces preferably take' the form of freely revoluble rollers.

It is a feature of the device of the present invention that it ma easily and quickly be manipulated to provide for free passage into the machine of a new web when one web is exhausted or is to be exchanged for another.

Other features and advantages will hereafter appear.

In the accompanying drawings,

Figure 1 is a view, in cross-sectional side elevation, of the platencarriage and attachments thereto of a typewriting machine embodying the present invention.

Figure 2 is a top plan View of the apparatus shown in Figure 1.

Figure 3 is a detail view, in side eleva tion, of the ironing device, and mounting therefor, of the present invention.

In the form of Underwood continuous billing machine shown in the aforesaid Wernery & Smith patent, the platen is displaceable on a carriage 11 between the typing position shown in F'i ure 1 and a pgsition wherein relative shift of the carns and work-web piles is effected. For this purpose, the platen-axle 12 is journaled in a pair of plates 13 which swing on a shaft 14 on the side ieces 15 of the carriage. In order that the p aten may be rotated in either position thereof, the platen-axle 12 has fast thereto at each enda pinion 16 in mesh with a inion 17 on the shaft 14. Also in mesh wit each of the pinions 17 is a pinion 18, one on. theend' .of each of a pair of stub-shafts 19 journaled *inthe side ieces of the carriage and carrying the usual nger-wheels 20. 'Iheplaten may also be rotated by line-space mechanism, not shown. W' hen the platen 'is in typing position, the

side pieces of the carriage. Fast on the rocksha'ft 21 area pair of hooks 22 adapted to be snapped overp'ins- 23 on the frame-pieces platen.

The carriage is provided with the usual pa 1' table .andapron 26 for guiding the we down and around to the. front of the rear ends ofthe swinging frame-plates 13 rest upon afrock-s'haft'21 journaled in the 13 to lock the platen frame in its typing powhich the ends of the web are drawn displaced after com platen; and front and rear ressure-rolls 27 and 28 co-operate with the p aten to feed the web when the platen is in typing position.

The paper-table 26 is shown as turned up over the rock-shaft 21 to provide a curved surface over which the web is guided. Supported on the side plates 13 of the swinging frame is a front paper-table 29 over which the web is guided above the printing line. To the table 29 is secured a staff 30, on which is adjustably mounted a gage 31, to

preliminary to detachment of the typed leading form-sections thereof; and such detachment is effected by drawing the leading form-sections of the web against a blade 32, also carried on the side swinging frame. 1

On the rear cross-piece 33 of the carriage are a pair of brackets 34, which project rearward and have ears 35 upturned therefrom to receive a bar 36 which forms the front reach of a carbon-carrier table 37, so that the carbon-carrier table is, in effect, a rearward extension of the platen-carriage, and is secured to move with the latter in letterfeed and return directions. At its rear the table 37 may ride upon a rail, not shown.

The front reach 36 of the carbon-carrier table connects by side reaches 38 to a rear reach 39. A guide-bar 40 for the web is sup orted by upri hts 41 on the rear of the car on-carricir table; and on the'bar 40 are side guides or ga cs 42 for the web.

The fan-folde web, comprisingplies 43, 44 and 45, may be folded crosswise and zig zag in a receptacle 46 at the rear of the machine. From the receptacle 46 the web is led upward over and around the guide rail 40 at the rear of the carbon-carrier table, and thence forward over the latter to the carbon-paper carriage 47 where the work-web plies become interleaved with the carbon-sheets 48. These sheets are attached at their rear ends, one to each of two clips 49 which are mounted on steps on a pair of blocks 50 secured to a base-plate 51. Journaled at each side of the plate 51 are grooved rollers 52 which ride on rails 53 carried by the side reaches 38 of the carbon-carrier table. As the composite web receives its line-feed in a typin operation, the carboncarriage moves free forward on the rails 53 toward the platen. When the platen is I lotion of typing of a form-length, the car ons are released from the platen and the carbon-carriage may be thrown rearward on the rails 53 to a suitable stop 54 by means of ahandle 55 fast to the carbon-carriage base-plate 51. During this rearward throw of the carbon-carriage the work-web plies may be held by their front ends, so that relative shift of the carbons from the leading typed form to the nextuntyped form is effected. Commonly,

plates 13 of the.

,is as follows.

the carbon-clips 49 have slitters 56 on their free or distal ends. These slitters project beyond the adjacent margin of the work-web, so that, as the carbon-carriage is thrown rearward, the fan-folded plies of the workweb are separated one from the other. The several operations of setting the web for detachment of the leading typed form-section, of shifting the carbons relatively to the web, and of detaching the leading typed formsection, are more fully explained in the aforesaid VVernery & Smith patent; and the mechanism thus far described is also fully set forth in said VVernery & Smith patent.

It will be noted that due to the zigzag stacking of the web, the cross-folds therein, as indicated at 57 and 58 in Figure 1,

- are alternated on the opposite-faces of the web. The device for ironing-out these folds of the carbon-carriage, one at each side thereof, are two brackets 59 which extend horizontally rearward, and which, at the rearthereof, have journaled therein a pair of-rollers 60 and 61; the roller 61 being spaced somewhat forward of the roller 60 along the path on which the web passes to the platen. The web lies above both the rollers 60 and 61. Pivoted at 6:2 to each of the brackets 59 is an arm 63. The arms 63 extend rearward; and, journaled in the distal ends of the arms 63, is a third roller 64. The roller 64 is intended at all times to be above the web; and, when the arms 63 are in Figure 3 position, this roller 64 bears upon the web between the rollers 60 and 61. The lowest position of the roller 64 may be determined, if desired, by engagement of a finger 65 on each of the arms 63 with one of two stop-pins 66, one on each of the brackets 59. Springs 67 connect thearlns 63 to the brackets 59 to hold the arms 63 against the stops 66, and to return the arms,

63 with the roller 64 to normal position. The springs 67 thus ermit the roller 64 to yield upward and to e lifted for threading a new web into the machine.

On reference to Figure 3 it will be noted that when the carbon-carriage, with the carbons, is thrown rearward relatively to the work-web inthe carbon-shifting operation, the roller 64, as it passes along the work-web, bonds the latter partially around the roller 60. This bending of the web is in a direction opposite to the direction in which the fold 58 projects; so that, as the fold 58 is passed over the roller 60 between the latter and the roller 64, it is effectually ironed-out 'fll'ld erased. After being thus turned down'and partially around the roller 60, the web is caused by the roller 61 to be turned up and in the opposite direction partially around the roller 64.

Secured to the base-plate 51 and, astlie cross-fold 57 is reached by the .roller 61, it isconsequently effectually ironed-out. The roller 61 also serves to redirect the Web in the proper plane toward the carbon-holder.

From the foregoing it will be seen that the cross-folds 57 and are eliminated before they are reached by the carbon-sheets and carbon-holder.' It will also be noted that the rollers 60, 61 and (34 all extend beyond the sidemargins of the web and thus serve to iron down the-longitudinal or fan folds in the latter in advance of the slitters 56; and the side folds are therefore presented to the slitters in a condition for tru and accurate slitting, regardless of the texture of the paper or of inaccuracies in the alignment of any perforations intended to demark the fan-folds thereof.

Variationsmay be resorted to'within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, a platen, means for feeding a work-web to and around the platen, and means for bending'the web alternately to one side and then to the other .side of its normal plane of travel to the 30v platen whereby to eliminate cross-folds in the web. Y

2. Ina typewriting machine, aplaten, means for feeding a work-web to and around the platen, and three rolls, two of which are on one side of the. web, and one of which is on the other side of the web and projects into the path of the web between the other two rolls, whereby to cause the web to be turned first in one direction partially around. the rearmost roll and thenin the opposite direction partially around the middle roll for ironing out cross-folds in the web.

3. vIn a typewriting machine, a platen, means for feeding a work-webto and around the platen, three rolls, two of which are on one side of the web, and one of which is on the other side of-the Web and projects into the path of the web between the other two rolls, whereby tocausedhe web to be turned first in one direction partially around the real-most roll and then In, the opposite direc-' tion partially around the middle roll for ironing: out cross-folds in the web, and a spring-device for holding the middle roll yieldably in effective position.

at. In a typewriting machine, a platen, means for feeding a work-web to and around the platen, three rolls, two of which are on one side of the web, and one of which is on the other side of the web and 'projectsinto the path of the web between the other two rolls, whereby to cause the web to be turned first in one direction partially around the rearmost roll and then in the opposite direction partially around the middle roll for ironing out cross-folds in the web, and a rocker on which the middle roll is mounted for yieldable bearing on the web.

5. In a typewriting machine, a platen, means or-feeding" a multiple-ply work-web ,to and around the platen, a carbon-holder whereat the workweb plies are interleaved with carbons, and means for bending out op iositely-directed cross-folds in the workweb plies preliminary to interleavement of the latter with the carbons; such bending rolls comprising means for directing the web through an'undulatory course so that said .web is "first bent in one direction to erase the folds on one face of the web and then bent in the opposite direction to erase the folds on the other face of the web.

6. In a typewriting machine, a platen, means for feeding a multiple-ply work-web to and around the platen, a carbon-holder whereat the workweb plies are interleaved with carbons, and means for ironing out oppositely-direrted cross-folds in the'workweb plies preliminary to interlearement of the latter with. the'carbons; such ironing means comprising a pair of rolls, one in advance of the other on the path of the web, the foremost roll acting to bend the web in one direction around the rear-most roll to erase the folds on one face of the web, and

1 means for bending the web in the opposite direction around the foremost roll to erase the folds on the other face of the web.

7. In a typewriting machine, a platen, means for feeding a multiple-ply work-web to and around the platen, a carbon-carriage whereat the work-web plies are interleaved with carbons, means for-shifting the carboncarriage with the carbons along the path of the work-web relatively to the latter, and a series of pressure rolls on the carbon-carriage for bending the web bodily in opposite directions from its normal plane of travel, whereby to eliminate cross-folds in said web.

8. In a typewriting machine, a platen, means for feeding a multiple-ply work-web to and around the platen, a carbon-carriage whereat the work-web plies are interleaved with carbons, means for shifting the carboncarriage with the carbons along the path of the work-web relatively to the latter, and guide means on the carbon-carriage imparting a wave-like motion to the plies as they are fed forwardly to the platen, whereby said motion bends the plies to eliminate cross-folds in the latter.

9. In a typewriting machine, a platen, means for feeding a multiple-ply work-web to and around the platen, a carbon-carriage wher eat the work-web plies are interleaved with carbons, means for shifting the carboncarriage with the carbons along the path of the work-web relatively to the latter, and freely revoluble rollers on the carbon-carriage, the rollers being so related to one another as to cause the Web to be'bent in a waved path on its way to the platen, whereby cross-folds or creases in the web are eliminated by reason of said'bending action of the rollers.

10. In a typewriting machine, a platen, means for feeding a multiple-ply work-web to and around the platen, a carbon-carriage Whereat the work-web plies are interleaved with carbons, means for shifting the carboncarriage with the carbons along the path of the work-web relatively to the latter, and means on the carbon-carriage, behind the carbons, for bending the web through an undulatory path to iron-out cross-folds in the latter.

11. In a typewriting machine, a platen, means for feeding a multiple-ply fan-folded work-web to and around the platen, a car hon-carriage whereat the work-web plies are interleaved with carbons, means on the carhon-carriage for slitting the web along the fan-folds therein, means for shifting the carbon-carriage -with the carbons along the path of the work-web relatively to the latter, and means on the carbon-carriage, be-

. hind the slitters, for subjecting the web to a series of bending operations through an undulatory path whereby to eliminate alternate oppositely directed cross-folds in said web.

12. In a typewriting machine, a platen, means for feeding a cross-creased multipleply side-folded work-web to and around the platen, a series of rolls exerting pressure against one another and s0 positioned as to cause the web to be bent alternately to one side and then to'the other side of its normal plane of travel to the platen, whereby the pressure of the rolls combined with the bending action of the web irons out, and thereby eliminates cross-folds .in said web, and means between the rolls and the platen for slitting the side folds.

13. In a typewriting machine, a platen, means for feeding a cross-creased multipleply side-folded work-web to and around the platen, a series of freely revoluble rolls exerting a pressure against both sides of the web and so positioned as to cause the web to travel through an undulatory path on its way to the platen whereby said web is sub jected to a series of, bending operations alternately to one side and then to the other side of its normal plane of travel to the platen, so that the pressure of the rolls combined with the bending of the web removes cross-folds in said web, and means between the rolls and the platen for slitting the side folds.

JESSE A. B. SMITH. 

